Algebra
Order of operations
Multiplication and division resolve before addition and subtraction, and powers resolve before both. Brackets are the only way to force a different grouping.
The Formula
brackets, then powers, then multiply and divide, then add and subtract
Multiplication and division resolve before addition and subtraction, and powers resolve before both. Brackets are the only way to force a different grouping.
| Symbol | Meaning | Unit | Notes |
|---|---|---|---|
| a | First operand | value | The value added last. |
| b | Second operand | value | Multiplied before the addition happens. |
| c | Third operand | value | Multiplied with the second operand. |
What Each Symbol Means
avalue
First operand
The value added last.
bvalue
Second operand
Multiplied before the addition happens.
cvalue
Third operand
Multiplied with the second operand.
See It Worked With Real Numbers
A formula on its own does not tell you which number goes where. The how to use a scientific calculator page applies this equation to a concrete case, shows every intermediate step, and names the mistakes that produce a wrong answer even when the algebra is right.
Where This Formula Appears
This equation is the working core of How To Use A Scientific Calculator, filed under Math. Every number the guide produces comes from substituting into this one line.